While boating, you see a red flag with a white diagonal stripe. What does this flag mean? It does not indicate any danger. Below the title, it says what it means.

https://numberoneboats.com/while-boating-you-see-a-red-flag-with-a-white-diagonal-stripe/

https://theboatyacht.com/while-boating-you-see-a-red-flag-with-a-white-diagonal-stripe/